I did changed just the hostname on two last week with no issues.  My IPs also 
remained the same, just a DNS update.



From: Bob Ball [mailto:[email protected]]
Sent: Monday, December 13, 2010 3:02 PM
To: Wojciech Turek
Cc: Lundgren, Andrew; Lustre discussion
Subject: Re: [Lustre-discuss] Renaming an OSS

Not using heartbeat (Lustre 1.8.4 manual section 8.3?).  As we've added OSS, 
we've never explicitly placed the machine names in any configuration.

Furthermore, no IP changes will be made, just the DNS name, so perhaps we are 
safe after all?

bob

On 12/13/2010 4:48 PM, Wojciech Turek wrote:
I think that Andreas got confused and thought that you want rename OST.

Renaming OSS is easy and don't require any Lustre reconfiguration if your 
Lustre configuration is based on IP addresses and not hostnames.

If you have heartbeat, you need to change names in configuration

Best regards,

Wojciech

On 13 December 2010 21:34, Bob Ball <[email protected]<mailto:[email protected]>> 
wrote:
Yes, just the DNS name.  From Andreas' response, it would seem this is
not something I want to do.

bob

On 12/13/2010 4:11 PM, Lundgren, Andrew wrote:
> Are you talking about renaming the DNS name of the host machine, or something 
> else?
>
> -----Original Message-----
> From: 
> [email protected]<mailto:[email protected]>
>  
> [mailto:[email protected]<mailto:[email protected]>]
>  On Behalf Of Bob Ball
> Sent: Monday, December 13, 2010 1:49 PM
> To: Lustre discussion
> Subject: [Lustre-discuss] Renaming an OSS
>
> For administrative reasons, we want to rename an OSS.  It will retain
> the same IP addresses, and have the same OST.  Does this present any
> problems that I should be aware of, or is it a no-brainer?
>
> Thanks,
> bob
>
> _______________________________________________
> Lustre-discuss mailing list
> [email protected]<mailto:[email protected]>
> http://lists.lustre.org/mailman/listinfo/lustre-discuss
>
>
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Wojciech Turek

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